Hi. Thanks for the help. I reposted the problem and someone suggested that the problem might be adware on my end or the within the browser. They were right. A Facebook video explains how to eliminate the problem. I followed their advice, and the ads disappeared.
Here's a link to the video:
http://www.zdnet.com/blog/facebook/facebook-teaches-users-how-to-remove-adware-video/10894
The graphs aren't appearing correctly on the dashboard. If I mouse over the graph area, I get the stats; but there are no bars.